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Cisco ASA 5505 Network interferance

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  • Cisco ASA 5505 Network interferance

    Hi
    I have configured a Cisco ASA 5505 to connect an outside LAN though to one of our servers on the internal LAN which works fine.
    However on the internal LAN I have been having network issues with router running, even when the external LAN is not physically connect to our Router (it mobile).
    The problem is slow internet browsing and dropping web connections on PC that arenít even been NATed to and are nothing to do with the router other than they use the same subnet.
    Has any one else experienced problem with this?
    Thank you

  • #2
    Re: Cisco ASA 5505 Network interferance

    Can you draw a diagram of the setup inc IP addresses etc please?
    With dropouts etc are you seeing IP conflicts?
    cheers
    Andy

    Please read this before you post:


    Quis custodiet ipsos custodes?

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    • #3
      Re: Cisco ASA 5505 Network interferance

      Thank you for replaying

      The Cicso router is configured to connect from 10.10.10.5 to send all traffic to 192.168.0.165 only.

      The network is a bigger than the diagram however I just put in what I thought was relevant.

      I am not aware of any conflicts on the network.

      Thank you,
      Attached Files

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      • #4
        Re: Cisco ASA 5505 Network interferance

        10.10.10.6 is the outside interface on the ASA? How many users is the ASA licensed for?
        CCNA, CCNA-Security, CCNP
        CCIE Security (In Progress)

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        • #5
          Re: Cisco ASA 5505 Network interferance

          Yes the router is to connect two LAN's that are local.

          It is a 10 user.

          Thanks

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          • #6
            Re: Cisco ASA 5505 Network interferance

            I have have about 10 ASA 5505's in our remote offices for a local cable internet connection with no issues. This all started when the ASA was put in place? I would start checking cabling, your switches, then work your way up to your router. Are you dropping packets to your ISP? The only traffic that is going through the ASA should be from that remote subnet so the ASA shouldn't be an issue for your local lan traffic. Look at your switch logs, switch utilization, duplex mismatches, bad cabling etc.
            CCNA, CCNA-Security, CCNP
            CCIE Security (In Progress)

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            • #7
              Re: Cisco ASA 5505 Network interferance

              Yeah it only started after I put the router in, I have unplugged it to see if there is any improvement but the problem with intermittent faults is that there hard to tell.

              Thank you for your help.

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              • #8
                Re: Cisco ASA 5505 Network interferance

                You have to isolate the issue and work from there. Keep me posted and I will assist as much as I can.
                Last edited by auglan; 30th July 2012, 14:11.
                CCNA, CCNA-Security, CCNP
                CCIE Security (In Progress)

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